# | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
---|---|---|---|---|---|---|---|
1197270 | mmaiti | Sprinklers (CEOI24_sprinklers) | C++20 | 컴파일 에러 | 0 ms | 0 KiB |
#include <algorithm>
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define vi vector<int>
#define si set<int>
#define usi unordered_set<int>
#define sll set<ll>
#define usll unordered_set<ll>
#define vb vector<bool>
#define vll vector<ll>
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vvi vector<vector<int>>
#define vvll vector<vector<ll>>
vll S;
vll F;
ll N, M;
// if the second element in P is not -1, then recurse 2 positions back else
// recurse 1
vector<vector<pll>> P;
bool getConf(ll power) {
// -1 means no solution
// dp[i][0] means sprinkler i facing left
vector<vll> dp(N, vll(2, -1));
P = vector<vector<pll>>(N, vector<pll>(2, {-1, -1}));
// Set up IC for DP
if (F[0] < S[0]) {
if (S[0] - power <= F[0]) {
dp[0][0] = S[0];
} else {
return false;
}
} else {
dp[0][1] = S[0] + power;
}
for (int i = 1; i < N; i++) {
auto close = lower_bound(F.begin(), F.end(), S[i]);
// can we point this sprinkler right?
// yes
if (close == F.begin() || *(--close) <= max(dp[i - 1][0], dp[i - 1][1])) {
dp[i][1] = S[i] + power;
P[i][1] =
dp[i - 1][1] >= dp[i - 1][0] ? make_pair(1, -1) : make_pair(0, -1);
// no
} else {
// have to point left, now split into cases
if (i >= 2 && S[i] - power <= S[i - 2]) {
// we know dp[i-1][0 or 1] is valid, so then can point sprinkler i-1 to
// the right
dp[i][0] = S[i - 1] + power;
P[i][0] =
(dp[i - 2][1] >= dp[i - 2][0]) ? make_pair(1, 1) : make_pair(1, 0);
} else if (S[i] - power <= S[i - 1]) {
// want to try to point sprinkler i-1 to the right if possible
auto nxPoint = lower_bound(F.begin(), F.end(), S[i] - power);
if (i >= 2) {
if (nxPoint == F.begin() ||
*(--nxPoint) <= max(dp[i - 2][0], dp[i - 2][1])) {
dp[i][0] = S[i - 1] + power;
P[i][0] = (dp[i - 2][1] > dp[i - 2][0]) ? make_pair(1, 1)
: make_pair(1, 0);
} else {
// turn both to the left
dp[i][0] = S[i];
P[i][0] = make_pair(0, 0);
}
} else {
if (nxPoint == F.begin()) {
dp[i][0] = S[i - 1] + power;
P[i][0] = (dp[i - 1][1] > dp[i - 1][0]) ? make_pair(1, -1)
: make_pair(0, -1);
} else {
dp[i][0] = S[i];
}
}
} else {
// only in this case is there a possibility that we may not be able to
// cover all points to the left, and thus here one branch returns false
auto nxPoint = lower_bound(F.begin(), F.end(), S[i] - power);
if (nxPoint == F.begin() ||
*(--nxPoint) <= max(dp[i - 1][0], dp[i - 1][1])) {
dp[i][0] = S[i];
P[i][0] = (dp[i - 1][1] >= dp[i - 1][0]) ? make_pair(1, -1)
: make_pair(0, -1);
} else {
return false;
}
}
}
}
return max(dp[N - 1][0], dp[N - 1][1]) >= F[F.size() - 1];
}
void printSol(int curIx, int dir) {
if (P[curIx][dir].second != -1) {
printSol(curIx - 2, P[curIx][dir].second);
cout << (P[curIx][dir].first == 0 ? 'L' : 'R');
} else if (P[curIx][dir].first != -1) {
printSol(curIx - 1, P[curIx][dir].first);
}
cout << (dir == 0 ? 'L' : 'R');
}
void solve() {
cin >> N >> M;
S.resize(N);
F.resize(M);
for (int i = 0; i < N; i++)
cin >> S[i];
for (int i = 0; i < M; i++)
cin >> F[i];
ll lo = 0;
ll hi = 1e9 + 1;
ll sol = hi;
while (lo <= hi) {
ll mid = (lo + hi) / 2;
if (getConf(mid)) {
sol = mid;
hi = mid - 1;
} else {
lo = mid + 1;
}
}
if (!getConf(sol)) {
cout << -1 << "\n";
} else {
cout << sol << "\n";
if (P[N - 1][0] == make_pair(-1, -1)) {
printSol(N - 1, 1);
} else {
printSol(N - 1, 0);
}
cout << "\n";
}
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(NULL);
solve();
}
컴파일 시 표준 에러 (stderr) 메시지
Main.cpp: In function 'void solve()': Main.cpp:133:21: error: no match for 'operator==' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} and 'std::pair<int, int>') 133 | if (P[N - 1][0] == make_pair(-1, -1)) { In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from Main.cpp:2: /usr/include/c++/11/bits/regex.h:1230:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)' (reversed) 1230 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1230:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from Main.cpp:2: /usr/include/c++/11/bits/regex.h:1397:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)' (reversed) 1397 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1397:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from Main.cpp:2: /usr/include/c++/11/bits/regex.h:1569:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)' (reversed) 1569 | operator==(const sub_match<_Bi_iter>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1569:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::sub_match<_BiIter>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/algorithm:61, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:495:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorR>&) requires requires{{std::operator==::__x->base() == std::operator==::__y->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}' (reversed) 495 | operator==(const reverse_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:495:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::reverse_iterator<_IteratorL>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/algorithm:61, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:1585:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&) requires requires{{std::operator==::__x->base() == std::operator==::__y->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}' (reversed) 1585 | operator==(const move_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:1585:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::move_iterator<_IteratorL>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/string:41, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/streambuf:41, from /usr/include/c++/11/bits/streambuf_iterator.h:35, from /usr/include/c++/11/iterator:66, from /usr/include/c++/11/bits/ranges_algobase.h:36, from /usr/include/c++/11/bits/ranges_algo.h:35, from /usr/include/c++/11/algorithm:64, from Main.cpp:1: /usr/include/c++/11/bits/allocator.h:218:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator==(const std::allocator<_CharT>&, const std::allocator<_T2>&)' (reversed) 218 | operator==(const allocator<_T1>&, const allocator<_T2>&) | ^~~~~~~~ /usr/include/c++/11/bits/allocator.h:218:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::allocator<_CharT>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/basic_string.h:48, from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/streambuf:41, from /usr/include/c++/11/bits/streambuf_iterator.h:35, from /usr/include/c++/11/iterator:66, from /usr/include/c++/11/bits/ranges_algobase.h:36, from /usr/include/c++/11/bits/ranges_algo.h:35, from /usr/include/c++/11/algorithm:64, from Main.cpp:1: /usr/include/c++/11/string_view:541:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >)' (reversed) 541 | operator==(basic_string_view<_CharT, _Traits> __x, | ^~~~~~~~ /usr/include/c++/11/string_view:541:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'std::basic_string_view<_CharT, _Traits>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/streambuf:41, from /usr/include/c++/11/bits/streambuf_iterator.h:35, from /usr/include/c++/11/iterator:66, from /usr/include/c++/11/bits/ranges_algobase.h:36, from /usr/include/c++/11/bits/ranges_algo.h:35, from /usr/include/c++/11/algorithm:64, from Main.cpp:1: /usr/include/c++/11/bits/basic_string.h:6248:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)' (reversed) 6248 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6248:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/functional:54, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from Main.cpp:1: /usr/include/c++/11/tuple:1524:5: note: candidate: 'template<class ... _TElements, class ... _UElements> constexpr bool std::operator==(const std::tuple<_Tps ...>&, const std::tuple<_UTypes ...>&)' (reversed) 1524 | operator==(const tuple<_TElements...>& __t, | ^~~~~~~~ /usr/include/c++/11/tuple:1524:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::tuple<_Tps ...>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/functional:59, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from Main.cpp:1: /usr/include/c++/11/bits/std_function.h:718:5: note: candidate: 'template<class _Res, class ... _Args> bool std::operator==(const std::function<_Res(_ArgTypes ...)>&, std::nullptr_t)' (reversed) 718 | operator==(const function<_Res(_Args...)>& __f, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/std_function.h:718:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::function<_Res(_ArgTypes ...)>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:2: /usr/include/c++/11/complex:469:5: note: candidate: 'template<class _Tp> constexpr bool std::operator==(const std::complex<_Tp>&, const _Tp&)' (reversed) 469 | operator==(const complex<_Tp>& __x, const _Tp& __y) | ^~~~~~~~ /usr/include/c++/11/complex:469:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::complex<_Tp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/locale_conv.h:41, from /usr/include/c++/11/locale:43, from /usr/include/c++/11/iomanip:43, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72, from Main.cpp:2: /usr/include/c++/11/bits/unique_ptr.h:753:5: note: candidate: 'template<class _Tp, class _Dp, class _Up, class _Ep> bool std::operator==(const std::unique_ptr<_Tp, _Dp>&, const std::unique_ptr<_Up, _Ep>&)' (reversed) 753 | operator==(const unique_ptr<_Tp, _Dp>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unique_ptr.h:753:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::unique_ptr<_Tp, _Dp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/locale_conv.h:41, from /usr/include/c++/11/locale:43, from /usr/include/c++/11/iomanip:43, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72, from Main.cpp:2: /usr/include/c++/11/bits/unique_ptr.h:760:5: note: candidate: 'template<class _Tp, class _Dp> bool std::operator==(const std::unique_ptr<_Tp, _Dp>&, std::nullptr_t)' (reversed) 760 | operator==(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/unique_ptr.h:760:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::unique_ptr<_Tp, _Dp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/shared_ptr.h:53, from /usr/include/c++/11/memory:77, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82, from Main.cpp:2: /usr/include/c++/11/bits/shared_ptr_base.h:1410:5: note: candidate: 'template<class _Tp1, class _Tp2, __gnu_cxx::_Lock_policy _Lp> bool std::operator==(const std::__shared_ptr<_Tp1, _Lp>&, const std::__shared_ptr<_Tp2, _Lp>&)' (reversed) 1410 | operator==(const __shared_ptr<_Tp1, _Lp>& __a, | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr_base.h:1410:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::__shared_ptr<_Tp1, _Lp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/shared_ptr.h:53, from /usr/include/c++/11/memory:77, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82, from Main.cpp:2: /usr/include/c++/11/bits/shared_ptr_base.h:1416:5: note: candidate: 'template<class _Tp, __gnu_cxx::_Lock_policy _Lp> bool std::operator==(const std::__shared_ptr<_Tp, _Lp>&, std::nullptr_t)' (reversed) 1416 | operator==(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr_base.h:1416:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::__shared_ptr<_Tp, _Lp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/memory:77, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82, from Main.cpp:2: /usr/include/c++/11/bits/shared_ptr.h:437:5: note: candidate: 'template<class _Tp, class _Up> bool std::operator==(const std::shared_ptr<_Tp>&, const std::shared_ptr<_Tp>&)' (reversed) 437 | operator==(const shared_ptr<_Tp>& __a, const shared_ptr<_Up>& __b) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr.h:437:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::shared_ptr<_Tp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/memory:77, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82, from Main.cpp:2: /usr/include/c++/11/bits/shared_ptr.h:443:5: note: candidate: 'template<class _Tp> bool std::operator==(const std::shared_ptr<_Tp>&, std::nullptr_t)' (reversed) 443 | operator==(const shared_ptr<_Tp>& __a, nullptr_t) noexcept | ^~~~~~~~ /usr/include/c++/11/bits/shared_ptr.h:443:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::shared_ptr<_Tp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/valarray:603, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:2: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)' (reversed) 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/valarray:603, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:2: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)' (reversed) 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/valarray:603, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:2: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)' (reversed) 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/valarray:603, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:2: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)' (reversed) 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/valarray:603, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:2: /usr/include/c++/11/bits/valarray_after.h:417:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__equal_to, typename _Dom1::value_type>::result_type> std::operator==(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)' (reversed) 417 | _DEFINE_EXPR_BINARY_OPERATOR(==, struct std::__equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/bits/valarray_after.h:417:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:2: /usr/include/c++/11/valarray:1198:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const std::valarray<_Tp>&, const typename std::valarray<_Tp>::value_type&)' (reversed) 1198 | _DEFINE_BINARY_OPERATOR(==, __equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1198:1: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::valarray<_Tp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95, from Main.cpp:2: /usr/include/c++/11/valarray:1198:1: note: candidate: 'template<class _Tp> std::_Expr<std::__detail::_BinClos<std::__equal_to, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__equal_to, _Tp>::result_type> std::operator==(const typename std::valarray<_Tp>::value_type&, const std::valarray<_Tp>&)' (reversed) 1198 | _DEFINE_BINARY_OPERATOR(==, __equal_to) | ^~~~~~~~~~~~~~~~~~~~~~~ /usr/include/c++/11/valarray:1198:1: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::valarray<_Tp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:111, from Main.cpp:2: /usr/include/c++/11/scoped_allocator:499:5: note: candidate: 'template<class _OutA1, class _OutA2, class ... _InA> bool std::operator==(const std::scoped_allocator_adaptor<_OutA1, _InA ...>&, const std::scoped_allocator_adaptor<_InnerHead, _InnerTail ...>&)' (reversed) 499 | operator==(const scoped_allocator_adaptor<_OutA1, _InA...>& __a, | ^~~~~~~~ /usr/include/c++/11/scoped_allocator:499:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::scoped_allocator_adaptor<_OutA1, _InA ...>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:2: /usr/include/c++/11/optional:1045:5: note: candidate: 'template<class _Tp, class _Up> constexpr std::__optional_eq_t<_Tp, _Up> std::operator==(const std::optional<_Tp>&, const std::optional<_Up>&)' (reversed) 1045 | operator==(const optional<_Tp>& __lhs, const optional<_Up>& __rhs) | ^~~~~~~~ /usr/include/c++/11/optional:1045:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::optional<_Tp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:2: /usr/include/c++/11/optional:1105:5: note: candidate: 'template<class _Tp> constexpr bool std::operator==(const std::optional<_Tp>&, std::nullopt_t)' (reversed) 1105 | operator==(const optional<_Tp>& __lhs, nullopt_t) noexcept | ^~~~~~~~ /usr/include/c++/11/optional:1105:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::optional<_Tp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:2: /usr/include/c++/11/optional:1173:5: note: candidate: 'template<class _Tp, class _Up> constexpr std::__optional_eq_t<_Tp, _Up> std::operator==(const std::optional<_Tp>&, const _Up&)' (reversed) 1173 | operator==(const optional<_Tp>& __lhs, const _Up& __rhs) | ^~~~~~~~ /usr/include/c++/11/optional:1173:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<int, int>' is not derived from 'const std::optional<_Tp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130, from Main.cpp:2: /usr/include/c++/11/optional:1179:5: note: candidate: 'template<class _Tp, class _Up> constexpr std::__optional_eq_t<_Up, _Tp> std::operator==(const _Up&, const std::optional<_Tp>&)' (reversed) 1179 | operator==(const _Up& __lhs, const optional<_Tp>& __rhs) | ^~~~~~~~ /usr/include/c++/11/optional:1179:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::optional<_Tp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/ios_base.h:46, from /usr/include/c++/11/streambuf:41, from /usr/include/c++/11/bits/streambuf_iterator.h:35, from /usr/include/c++/11/iterator:66, from /usr/include/c++/11/bits/ranges_algobase.h:36, from /usr/include/c++/11/bits/ranges_algo.h:35, from /usr/include/c++/11/algorithm:64, from Main.cpp:1: /usr/include/c++/11/system_error:368:3: note: candidate: 'bool std::operator==(const std::error_code&, const std::error_condition&)' (reversed) 368 | operator==(const error_code& __lhs, const error_condition& __rhs) noexcept | ^~~~~~~~ /usr/include/c++/11/system_error:368:32: note: no known conversion for argument 1 from 'std::pair<int, int>' to 'const std::error_code&' 368 | operator==(const error_code& __lhs, const error_condition& __rhs) noexcept | ~~~~~~~~~~~~~~~~~~^~~~~ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from Main.cpp:2: /usr/include/c++/11/bits/regex.h:1059:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator==(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)' 1059 | operator==(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs) | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:1059:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::__cxx11::sub_match<_BiIter>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/regex:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110, from Main.cpp:2: /usr/include/c++/11/bits/regex.h:2125:5: note: candidate: 'template<class _Bi_iter, class _Alloc> bool std::__cxx11::operator==(const std::__cxx11::match_results<_BiIter, _Alloc>&, const std::__cxx11::match_results<_BiIter, _Alloc>&)' 2125 | operator==(const match_results<_Bi_iter, _Alloc>& __m1, | ^~~~~~~~ /usr/include/c++/11/bits/regex.h:2125:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::__cxx11::match_results<_BiIter, _Alloc>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/utility:70, from /usr/include/c++/11/algorithm:60, from Main.cpp:1: /usr/include/c++/11/bits/stl_pair.h:466:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator==(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)' 466 | operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_pair.h:466:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: deduced conflicting types for parameter '_T1' ('long long int' and 'int') 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/algorithm:61, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:547:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorL>&) requires requires{{std::operator==::__x->base() == std::operator==::__y->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}' 547 | operator==(const reverse_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:547:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::reverse_iterator<_IteratorL>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/stl_algobase.h:67, from /usr/include/c++/11/algorithm:61, from Main.cpp:1: /usr/include/c++/11/bits/stl_iterator.h:1648:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)' 1648 | operator==(const move_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_iterator.h:1648:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::move_iterator<_IteratorL>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/iosfwd:40, from /usr/include/c++/11/iterator:64, from /usr/include/c++/11/bits/ranges_algobase.h:36, from /usr/include/c++/11/bits/ranges_algo.h:35, from /usr/include/c++/11/algorithm:64, from Main.cpp:1: /usr/include/c++/11/bits/postypes.h:222:5: note: candidate: 'template<class _StateT> bool std::operator==(const std::fpos<_StateT>&, const std::fpos<_StateT>&)' 222 | operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs) | ^~~~~~~~ /usr/include/c++/11/bits/postypes.h:222:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::fpos<_StateT>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/bits/basic_string.h:48, from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/streambuf:41, from /usr/include/c++/11/bits/streambuf_iterator.h:35, from /usr/include/c++/11/iterator:66, from /usr/include/c++/11/bits/ranges_algobase.h:36, from /usr/include/c++/11/bits/ranges_algo.h:35, from /usr/include/c++/11/algorithm:64, from Main.cpp:1: /usr/include/c++/11/string_view:535:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)' 535 | operator==(basic_string_view<_CharT, _Traits> __x, | ^~~~~~~~ /usr/include/c++/11/string_view:535:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: 'std::pair<long long int, long long int>' is not derived from 'std::basic_string_view<_CharT, _Traits>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/streambuf:41, from /usr/include/c++/11/bits/streambuf_iterator.h:35, from /usr/include/c++/11/iterator:66, from /usr/include/c++/11/bits/ranges_algobase.h:36, from /usr/include/c++/11/bits/ranges_algo.h:35, from /usr/include/c++/11/algorithm:64, from Main.cpp:1: /usr/include/c++/11/bits/basic_string.h:6226:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)' 6226 | operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6226:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/string:55, from /usr/include/c++/11/bits/locale_classes.h:40, from /usr/include/c++/11/bits/ios_base.h:41, from /usr/include/c++/11/streambuf:41, from /usr/include/c++/11/bits/streambuf_iterator.h:35, from /usr/include/c++/11/iterator:66, from /usr/include/c++/11/bits/ranges_algobase.h:36, from /usr/include/c++/11/bits/ranges_algo.h:35, from /usr/include/c++/11/algorithm:64, from Main.cpp:1: /usr/include/c++/11/bits/basic_string.h:6234:5: note: candidate: 'template<class _CharT> typename __gnu_cxx::__enable_if<std::__is_char<_Tp>::__value, bool>::__type std::operator==(const std::__cxx11::basic_string<_CharT>&, const std::__cxx11::basic_string<_CharT>&)' 6234 | operator==(const basic_string<_CharT>& __lhs, | ^~~~~~~~ /usr/include/c++/11/bits/basic_string.h:6234:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::__cxx11::basic_string<_CharT>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/iterator:66, from /usr/include/c++/11/bits/ranges_algobase.h:36, from /usr/include/c++/11/bits/ranges_algo.h:35, from /usr/include/c++/11/algorithm:64, from Main.cpp:1: /usr/include/c++/11/bits/streambuf_iterator.h:226:5: note: candidate: 'template<class _CharT, class _Traits> bool std::operator==(const std::istreambuf_iterator<_CharT, _Traits>&, const std::istreambuf_iterator<_CharT, _Traits>&)' 226 | operator==(const istreambuf_iterator<_CharT, _Traits>& __a, | ^~~~~~~~ /usr/include/c++/11/bits/streambuf_iterator.h:226:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::istreambuf_iterator<_CharT, _Traits>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/tuple:39, from /usr/include/c++/11/functional:54, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from Main.cpp:1: /usr/include/c++/11/array:276:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr bool std::operator==(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&)' 276 | operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two) | ^~~~~~~~ /usr/include/c++/11/array:276:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::array<_Tp, _Nm>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/unordered_map:47, from /usr/include/c++/11/functional:61, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from Main.cpp:1: /usr/include/c++/11/bits/unordered_map.h:2134:5: note: candidate: 'template<class _Key1, class _Tp1, class _Hash1, class _Pred1, class _Alloc1> bool std::operator==(const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&, const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&)' 2134 | operator==(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unordered_map.h:2134:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::unordered_map<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/unordered_map:47, from /usr/include/c++/11/functional:61, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from Main.cpp:1: /usr/include/c++/11/bits/unordered_map.h:2148:5: note: candidate: 'template<class _Key1, class _Tp1, class _Hash1, class _Pred1, class _Alloc1> bool std::operator==(const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&, const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>&)' 2148 | operator==(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/unordered_map.h:2148:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::unordered_multimap<_Key1, _Tp1, _Hash1, _Pred1, _Alloc1>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/vector:67, from /usr/include/c++/11/functional:62, from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13, from /usr/include/c++/11/algorithm:74, from Main.cpp:1: /usr/include/c++/11/bits/stl_vector.h:1892:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator==(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)' 1892 | operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_vector.h:1892:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::vector<_Tp, _Alloc>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/ccomplex:39, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54, from Main.cpp:2: /usr/include/c++/11/complex:464:5: note: candidate: 'template<class _Tp> constexpr bool std::operator==(const std::complex<_Tp>&, const std::complex<_Tp>&)' 464 | operator==(const complex<_Tp>& __x, const complex<_Tp>& __y) | ^~~~~~~~ /usr/include/c++/11/complex:464:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::complex<_Tp>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/deque:67, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:68, from Main.cpp:2: /usr/include/c++/11/bits/stl_deque.h:2247:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator==(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)' 2247 | operator==(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_deque.h:2247:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::deque<_Tp, _Alloc>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/list:63, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:79, from Main.cpp:2: /usr/include/c++/11/bits/stl_list.h:2030:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator==(const std::__cxx11::list<_Tp, _Alloc>&, const std::__cxx11::list<_Tp, _Alloc>&)' 2030 | operator==(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_list.h:2030:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::__cxx11::list<_Tp, _Alloc>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/map:61, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:81, from Main.cpp:2: /usr/include/c++/11/bits/stl_map.h:1463:5: note: candidate: 'template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator==(const std::map<_Key, _Tp, _Compare, _Allocator>&, const std::map<_Key, _Tp, _Compare, _Allocator>&)' 1463 | operator==(const map<_Key, _Tp, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_map.h:1463:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::map<_Key, _Tp, _Compare, _Allocator>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/map:62, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:81, from Main.cpp:2: /usr/include/c++/11/bits/stl_multimap.h:1128:5: note: candidate: 'template<class _Key, class _Tp, class _Compare, class _Alloc> bool std::operator==(const std::multimap<_Key, _Tp, _Compare, _Allocator>&, const std::multimap<_Key, _Tp, _Compare, _Allocator>&)' 1128 | operator==(const multimap<_Key, _Tp, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_multimap.h:1128:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::multimap<_Key, _Tp, _Compare, _Allocator>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/queue:64, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:86, from Main.cpp:2: /usr/include/c++/11/bits/stl_queue.h:344:5: note: candidate: 'template<class _Tp, class _Seq> bool std::operator==(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)' 344 | operator==(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) | ^~~~~~~~ /usr/include/c++/11/bits/stl_queue.h:344:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::queue<_Tp, _Seq>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/set:61, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:87, from Main.cpp:2: /usr/include/c++/11/bits/stl_set.h:985:5: note: candidate: 'template<class _Key, class _Compare, class _Alloc> bool std::operator==(const std::set<_Key, _Compare, _Allocator>&, const std::set<_Key, _Compare, _Allocator>&)' 985 | operator==(const set<_Key, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_set.h:985:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::__alloc_traits<std::allocator<std::pair<long long int, long long int> >, std::pair<long long int, long long int> >::value_type' {aka 'std::pair<long long int, long long int>'} is not derived from 'const std::set<_Key, _Compare, _Allocator>' 133 | if (P[N - 1][0] == make_pair(-1, -1)) { | ^ In file included from /usr/include/c++/11/set:62, from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:87, from Main.cpp:2: /usr/include/c++/11/bits/stl_multiset.h:971:5: note: candidate: 'template<class _Key, class _Compare, class _Alloc> bool std::operator==(const std::multiset<_Key, _Compare, _Allocator>&, const std::multiset<_Key, _Compare, _Allocator>&)' 971 | operator==(const multiset<_Key, _Compare, _Alloc>& __x, | ^~~~~~~~ /usr/include/c++/11/bits/stl_multiset.h:971:5: note: template argument deduction/substitution failed: Main.cpp:133:40: note: '__gnu_cxx::